Chrome NET::ERR_CERT_WEAK_SIGNATURE_ALGORITHM Error on Windows

Question

Every time when I search for a URL that starts with https, Google Chrome shows the error:

Your connection is not private

Attackers might be trying to steal your information from chrome.google.com (for example, passwords, messages, or credit cards). NET::ERR_CERT_WEAK_SIGNATURE_ALGORITHM

I don't what is wrong is their any problem in Internet settings or with Google Chrome. How can I fix this?

Answer 1

This specific error is caused by an SSL certificate used to secure the site not having a strong enough encryption algorithm. The owner of the website will need to re-issue their SSL cert using a stronger algorithm.

Answer 2

1 - Open chrome then press f12 ( win+f12 or ctrl +f12 )
2 - Open Security tap and view certificate ( red ! ) should be seen
3 - check Issued by ( my case was Superfish Inc ) this is the software that makes your error. SSL certificate not trusted.

https://support.lenovo.com/my/en/product_security/superfish_uninstall

please check this link for superfish Inc removal if your case is same if not check manual removal part.
Manual remove :
1- control panel-> add remove program -> remove program which was seen in step 3.

2- In windows start menu search for Certificate. choose manage computer certificates.

3- Open trusted Root certification and choose expired certificate that was found in step 3 . Right click in that and delete it.

4- MOST important part of computer world RESTART NOW :D

I hope it be useful for you .

Answer 3

This problem's fix in Linux is running in terminal: sudo apt-get install libnss3-1d
& since you're working on windows, to get the missed library it's pretty hard to find and install it as a one, so it's much easier to uninstall & re-install Google chrome will completely solve the problem.